Removable joint-pin for firearms.



A A. DAY.' y REMOVABLE JOINT PIN FOR FIRBARMS.

APPLIGATION ILED JUNE 28. 1902.

N0 MODEL PATENTND JUNE 28, 1904 Fig. l.

Unirse Sirenas Patented dune 28,1904.

strani ALBERT H. DAY, OF MOHAINK, NEVVYORK, ASSIGNGR T0 REMINGTON ARMS COMFANY, OF ILIGN, NEI/ YORK.

REEMQVABLFE JGlNTmPiid FR SPECIFICATION forming part of Letters Patent No. 763,46*?, dated June 28, 1904:.

Application filed June 28, 1902. Serial En. 1I3,626. (No model.)

To 09M whont t 17u/.y concern,.-

Be it known that I, ALBERT H. DAY, of Mohawk, in the county of Herkimer and State of New York, have invented certain new and useful Improvements in Removable Joint-Pins for Firearms;' and Ido hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying' drawings, and to the tigu res oi' reference marked thereon, which form part of this specification.

The object of my invention is to provide a joint-pin particularly intended for use in a frame-joint vof break-down firearms and which is readily and conveniently removed and replaced.

In the drawings, Figure l shows a side elevation of the front end of the frame of a firearm with my removable joint-pin in position therein. Fig. 2 shows the opposite sidev elevation. Fig. 3 shows a section as seen from the right-hand end of Fig. 1. Fig. 4 shows an end View as seen from the left-hand end of Fig. 5 shows a cross-section taken online A B of Fig. 1. Fig. 6 shows a plan view, and Fig. 7 a perspective view, of the joint-pin and handle by means of which it is manipulated.

Referring to the reference-figures in a Inore particular description, l indicates the frame. Extending transversely through the walls of the frame there is provided an opening which receives the joint pin 2. rIhe joint-pin 2 is provided with a lever-handle 3, by meansof which it is manipulated, and this lever-handle is pivoted in the end of the pin on the transverse pivot 4. It is held in open or closed position by a spring 5 in a longitudinal pocket in the pin, which spring acts on either of two adjacent fiat surfaces near the pivot 4. Adjacent to the ljoint-pin opening in the frame there is provided a recess 6, adapted to receive the lever-handle when in closed position near the opposite end ofthe pin from that in which the handle is provided, although this particular location is not material.

lhe pin 2 is provided with an indentation 2a. In a suitable position to register therewith there is provided in one of the walls ofv frame l a socket 7, which receives the ball 8, the spring 9, and the screw-cap 10, which secure the former two in position. The socket 7 opens into the pin-opening, and the ball 8 is adapted to project somewhat into the pinopening and engage in the indentation 2a. The end of the socket 7 adjacent to the pinopening, however, is smaller than the diameter ofthe ball, so that when the pin is removed the ball will not pass outolf the end of the socket.

To remove the pin, the handle 3 is turned out of the recess, so that the operator can take a hold of it, and by means of it, preferably, the pin rotated. 'lhis brings a portion of the pin at either end of the indentation 2 opposite the ball and forces the ball 8 into its socket. This is the preferableway of manipulation, as it requires less 'force to accomplish it. After this has heen done the pin can he freely slid out of the opening .or withdrawn. 0f course the pin can also be withdrawn by enough force without rotating it at all. The pin is replaced by forcing it through the opening,. when the somewhat-rounded end will move the hall 8 back into the socket suiciently to let the pin enter. The ball 8 will roll inthe socket, reducing the edort required to manipulate the pin both in moving the pin longitudinally or rotating it.

`vV hat I claim as new, and desire to secure hy Letters Patent, is--- ',lhe combination in a firearm-joint construction o1" a joint-pin, having an indentation partially encircling the pin, a frame part having an opening to receive the joint-pin, a ball and follower-spring, a socket to receive the ball and follower-spring opening into the jointpin opening, with an opening or' less diameter than the ball, whereby the ball will project into but not escape into the joint-pin opening when the pin is removed, substantially as set forth.

In witness whereof! have affixed mysignature, in presence of two witnesses, this 11th day of June, 1902. l

ALI-lit'l ll. DAY. fVitnesse/s: I

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